US PATENT SUBCLASS 416 / 147
HAVING POSITIVE MEANS FOR IMPELLER ADJUSTMENT

Current as of: June, 1999
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416 /   HD   FLUID REACTION SURFACES (I.E., IMPELLERS)

147HAVING POSITIVE MEANS FOR IMPELLER ADJUSTMENT {6}
148  DF  .~> Tiltable carrier (e.g., hub, etc.)
149  DF  .~> Shiftable carrier support {1}
151  DF  .~> Power derived from impeller shaft {1}
153  DF  .~> Having pitch lock or adjustable stop {1}
155  DF  .~> Motor bodily rotatable with impeller hub or shaft {1}
159  DF  .~> Power or manual actuator on non-rotatable part {5}

DEFINITION

Classification: 416/147

(under the class definition) Apparatus comprising mechanism for moving an impeller* or working member* relative to a carrier* or support* means therefor in response to motor or manual actuation, such movement being other than that occurring as a proximate result of, or to directly effect, reaction between the impeller or working member and the medium fluid.

(1) Note. The term "impeller" comprises a working member and any parts rigidly connected therewith, such as a hub or drive shaft. For a more comprehensive definition, see the Glossary, Main Class Definition.

(2) Note. Excluded under this definition is a mere limit stop or lock adjustment which may only indirectly result in impeller adjustment.